@Pablo For your FOG server to get to the internet is a web proxy server required or does the fog server have direct internet access?

You can also use a windows computer and download these two files:
https://fogproject.org/kernels/Kernel.TomElliott.4.9.4.64
https://fogproject.org/kernels/Kernel.TomElliott.4.9.4.32

After download rename Kernel.TomElliott.4.9.4.64 to bzImage and Kernel.TomElliott.4.9.4.32 to bzImage32 Make sure you use the exact capitalization I used. Then move these files to the FOG server into the /var/www/html/fog/service/ipxe directory.